Window-ventilator.



No. 809,228. PATENTED JAN, 2, 1906.

' A. A. STEPHENS.

WINDOW VBNTILATOR.

APPLICATION FILED 00T. 28,1904.'

UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Jan. 2, 1906.

Application filed October 2.8, 1904.v Serial No. 230,340.

To all whom it Wray concern.-

Be it known that I, AUGUSTUS A. STEPHENS,

a citizen of the United States, residing at Bellaire, in the county of Belmont, State of Ohio, have invented certain new and useful Improvements in Window-Ventilators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. l

This invention relates to means for prevent ing moisture accumulating upon show or other windows.

kOne object of the invention is to provide a very simple means of overcoming moisture settling upon windows and affecting the transparency thereof.

Another object resides in an inexpensive, durable, and effective means of accomplishing the purpose stated without causing an undue draft through the interior of the window,

store, or dwelling with which the invention `specification, and in which like numerals of reference indicate similar parts in the several views, Figure l is a sectional view of a storewindow looking from the inside, and Fig. 2 is a similar view looking from the outside, of the window.

Let it be understood at the outset that I do not force the outside air into a window, thereby causing undue draft therein or through the store or dwelling, but that, on the other hand, I draw the warm airby suction from the window and permit the cool air to enter the interior by natural draft and in fine quantity rather than by a broad stream under pressure, the latter manner being unnecessary and causing entirely too much draft.

The reference character l designates a store 0r other window casing having funnel-shaped air-inlet openings 2, preferably provided with the wire mesh 3 over their mouths for the purpose of excluding dust, dirt, and other foreign matter. openings 2 are short pipe connections t, communicating with the elongated cold-air drum, pipe, or tubing 5, arranged along the base of the interior of the window, the member 5 permitting the escape of the cool air therefrom into the window through the perforations 6, which latter are arranged to direct the air against the window-pane. The pipes just alluded to may be of any desired shape in crosssection, and, if desired, it is obvious that the pipe or drum 5 may be extended upon all sides of a square or like window.

Arranged at the top of the window-casing is an elongated pipe, drum, or tubing 7, having perforations 8 therein, the latter being arranged in the bottom of the former to take in warm air from the interior of the window, from which it is drawn downwardly through the pipe 9, connected therewith at one end in any suitable manner, through the instrumentality of the fan l0 of any suitable type, and discharged through the exhaust 1l, the fan being connected up in any suitable manner to the motor 12 of any desired variety. As shown, the vertical pipe 9 extends through the bottom of thewindow, the fan and motor being disposed beneath the latter.

As is well known, the windows of stores,l dwellings, and the like are in the winter time often exposed to a cold atmosphere on one side and a warmer atmosphere on the other, resulting in the collection of moisture or mist on the window-pane, which aects the transparency of the latter either by the mist itself or by its becoming `frozen upon the glass; but ifa window be equipped with my Vimproved device the inconvenience and annoyance occasioned by the mist or frost will be obviated.

What is claimed is- The combination with a window-casing having screened openings beneath its bottom which openings lead from the outside; of a perforated tubing arranged within the-casing at the bottom thereof, said tubing having a depending pipe extension at each end adapted to extend through the bottom of the casing and having flaring mouths fitting over' the corresponding openings beneath the bottom of the casing; a second perforated tubing ar- Leading from the funnel-shaped ranged at the top of and within the easing and independent of the other tubing, the perforations of the latter tubing being arranged in the bottom thereof, a pipe leading' from one end of the upper tubing through the iiooring of the easing, a fan in communication with the lower end of the last-named pipe,and means for operating the fan to draw warm air out of the casing through the tubing, the pipe and the fan.

In testimony whereof I aix my signature in presence of two witnesses.

AUGUSTUS A. STEPHENS. Witnesses:

JAMES STEWART, EDWARD J. STEGER. 

